I have a very tall white pine tree that appears to be sick. The
needles on the tope of the tree are turning brown. This started
before winter with only some small clumps throughout the tree but now
large patches have formed. There is another large white pine tree
right next to it and it is doing just fine. The two trees are the
same size, which is taller then a telephone poll. There is another
tree right next to it, the branches are touching, but the needles on
this side are fine. Is this tree sick? The branches and bark appear
to be fine but I'm not an expert. Any suggestions or information on
tree care would be appreciated.